<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title></title>
	</head>
	<body>
		<div>
			<span>初始化数字</span>
			<input type="text" />
		</div>
		<div>
			<span>累加的数字</span>
			<input type="text" />
		</div>
		<div>
			<span>时间间隔</span>
			<input type="text" />
		</div>
		<button>开始</button>
		<button>暂停</button>
		<h4></h4>
	</body>
</html>
